The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 21, 2017

Filed:

Sep. 03, 2014
Applicants:

Dow Corning Toray Co., Ltd., Tokyo, JP;

Dow Corning Corporation, Midland, MI (US);

Inventors:

Tadashi Okawa, Ichihara, JP;

Tomohiro Iimura, Ichihara, JP;

Sawako Inagaki, Ichihara, JP;

Mayumi Mizukami, Ichihara, JP;

Michitaka Suto, Ichihara, JP;

Haruhiko Furukawa, Ichihara, JP;

Randall G. Schmidt, Midland, MI (US);

Adam C. Tomasik, Mount Pleasant, MI (US);

Assignees:

DOW CORNING TORAY CO., LTD., Chiyoda-Ku, Tokyo, JP;

DOW CORNING CORPORATION, Midland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 83/04 (2006.01); C08K 5/00 (2006.01); C07F 7/08 (2006.01); C08K 5/5419 (2006.01); C09D 183/04 (2006.01); C09J 183/04 (2006.01); C09K 11/08 (2006.01); C09K 11/64 (2006.01); H01L 33/56 (2010.01);
U.S. Cl.
CPC ...
C08L 83/04 (2013.01); C07F 7/0859 (2013.01); C07F 7/0872 (2013.01); C08K 5/0091 (2013.01); C08K 5/5419 (2013.01); C09D 183/04 (2013.01); C09J 183/04 (2013.01); C09K 11/0883 (2013.01); C09K 11/641 (2013.01); H01L 33/56 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48247 (2013.01); H01L 2924/181 (2013.01);
Abstract

The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane having at least two alkenyl groups and at least one aryl group in a molecule, (B) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule, (C) an organopolysiloxane having at least one aryl group in a molecule and containing a metal atom selected from the group consisting of V, Ta, Nb and Ce, and (D) a hydrosilylation-reaction catalyst. The present invention can provide the curable silicone composition, which does not develop a crack by thermal aging and further can form a cured material that exhibits less yellowing.


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